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  <h3>Table of Contents</h3>

  <ul class="link-list" role="directory">
    <li><a href="#label-Class+Element">Class Element</a>
    <li><a href="#label-New+Element">New Element</a>
    <li><a href="#label-Task-3A+Create+a+Default+Element">Task: Create a Default Element</a>
    <li><a href="#label-Task-3A+Create+a+Named+Element">Task: Create a Named Element</a>
    <li><a href="#label-Task-3A+Create+an+Element+with+Name+and+Parent">Task: Create an Element with Name and Parent</a>
    <li><a href="#label-Task-3A+Create+an+Element+with+Name-2C+Parent-2C+and+Context">Task: Create an Element with Name, Parent, and Context</a>
    <li><a href="#label-Task-3A+Create+a+Shallow+Clone">Task: Create a Shallow Clone</a>
    <li><a href="#label-Attributes">Attributes</a>
    <li><a href="#label-Task-3A+Create+and+Add+an+Attribute">Task: Create and Add an Attribute</a>
    <li><a href="#label-Task-3A+Add+an+Existing+Attribute">Task: Add an Existing Attribute</a>
    <li><a href="#label-Task-3A+Add+Multiple+Attributes+from+a+Hash">Task: Add Multiple Attributes from a Hash</a>
    <li><a href="#label-Task-3A+Add+Multiple+Attributes+from+an+Array">Task: Add Multiple Attributes from an Array</a>
    <li><a href="#label-Task-3A+Retrieve+the+Value+for+an+Attribute+Name">Task: Retrieve the Value for an Attribute Name</a>
    <li><a href="#label-Task-3A+Retrieve+the+Attribute+Value+for+a+Name+and+Namespace">Task: Retrieve the Attribute Value for a Name and Namespace</a>
    <li><a href="#label-Task-3A+Delete+an+Attribute">Task: Delete an Attribute</a>
    <li><a href="#label-Task-3A+Determine+Whether+the+Element+Has+Attributes">Task: Determine Whether the Element Has Attributes</a>
    <li><a href="#label-Children">Children</a>
    <li><a href="#label-Task-3A+Create+and+Add+an+Element">Task: Create and Add an Element</a>
    <li><a href="#label-Task-3A+Add+an+Existing+Element">Task: Add an Existing Element</a>
    <li><a href="#label-Task-3A+Create+and+Add+an+Element+with+Attributes">Task: Create and Add an Element with Attributes</a>
    <li><a href="#label-Task-3A+Add+an+Existing+Element+with+Added+Attributes">Task: Add an Existing Element with Added Attributes</a>
    <li><a href="#label-Task-3A+Delete+a+Specified+Element">Task: Delete a Specified Element</a>
    <li><a href="#label-Task-3A+Delete+an+Element+by+Index">Task: Delete an Element by Index</a>
    <li><a href="#label-Task-3A+Delete+an+Element+by+XPath">Task: Delete an Element by XPath</a>
    <li><a href="#label-Task-3A+Determine+Whether+Element+Children">Task: Determine Whether Element Children</a>
    <li><a href="#label-Task-3A+Get+Element+Descendants+by+XPath">Task: Get Element Descendants by XPath</a>
    <li><a href="#label-Task-3A+Get+Next+Element+Sibling">Task: Get Next Element Sibling</a>
    <li><a href="#label-Task-3A+Get+Previous+Element+Sibling">Task: Get Previous Element Sibling</a>
    <li><a href="#label-Task-3A+Add+a+Text+Node">Task: Add a Text Node</a>
    <li><a href="#label-Task-3A+Replace+the+First+Text+Node">Task: Replace the First Text Node</a>
    <li><a href="#label-Task-3A+Remove+the+First+Text+Node">Task: Remove the First Text Node</a>
    <li><a href="#label-Task-3A+Retrieve+the+First+Text+Node">Task: Retrieve the First Text Node</a>
    <li><a href="#label-Task-3A+Retrieve+a+Specific+Text+Node">Task: Retrieve a Specific Text Node</a>
    <li><a href="#label-Task-3A+Determine+Whether+the+Element+has+Text+Nodes">Task: Determine Whether the Element has Text Nodes</a>
    <li><a href="#label-Task-3A+Get+the+Child+at+a+Given+Index">Task: Get the Child at a Given Index</a>
    <li><a href="#label-Task-3A+Get+All+CDATA+Children">Task: Get All CDATA Children</a>
    <li><a href="#label-Task-3A+Get+All+Comment+Children">Task: Get All Comment Children</a>
    <li><a href="#label-Task-3A+Get+All+Processing+Instruction+Children">Task: Get All Processing Instruction Children</a>
    <li><a href="#label-Task-3A+Get+All+Text+Children">Task: Get All Text Children</a>
    <li><a href="#label-Namespaces">Namespaces</a>
    <li><a href="#label-Task-3A+Add+a+Namespace">Task: Add a Namespace</a>
    <li><a href="#label-Task-3A+Delete+the+Default+Namespace">Task: Delete the Default Namespace</a>
    <li><a href="#label-Task-3A+Delete+a+Specific+Namespace">Task: Delete a Specific Namespace</a>
    <li><a href="#label-Task-3A+Get+a+Namespace+URI">Task: Get a Namespace URI</a>
    <li><a href="#label-Task-3A+Retrieve+Namespaces">Task: Retrieve Namespaces</a>
    <li><a href="#label-Task-3A+Retrieve+Namespace+Prefixes">Task: Retrieve Namespace Prefixes</a>
    <li><a href="#label-Iteration">Iteration</a>
    <li><a href="#label-Task-3A+Iterate+Over+Elements">Task: Iterate Over Elements</a>
    <li><a href="#label-Task-3A+Iterate+Over+Elements+Having+a+Specified+Attribute">Task: Iterate Over Elements Having a Specified Attribute</a>
    <li><a href="#label-Task-3A+Iterate+Over+Elements+Having+a+Specified+Attribute+and+Value">Task: Iterate Over Elements Having a Specified Attribute and Value</a>
    <li><a href="#label-Task-3A+Iterate+Over+Elements+Having+Specified+Text">Task: Iterate Over Elements Having Specified Text</a>
    <li><a href="#label-Context">Context</a>
    <li><a href="#label-Other+Getters">Other Getters</a>
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<main role="main" aria-label="Page rexml-3.2.6/doc/rexml/tasks/rdoc/element.rdoc">

<h2 id="label-Class+Element">Class Element<span><a href="#label-Class+Element">&para;</a> <a href="#top">&uarr;</a></span></h2>

<p>Class Element has methods from its superclasses and included modules; see:</p>
<ul><li>
<p><a href="parent_rdoc.html">Tasks for Parent</a>.</p>
</li><li>
<p><a href="child_rdoc.html">Tasks for Child</a>.</p>
</li><li>
<p><a href="node_rdoc.html">Tasks for Node</a>.</p>
</li><li>
<p><a href="https://docs.ruby-lang.org/en/master/Enumerable.html">Module Enumerable</a>.</p>
</li></ul>

<p>Tasks on this page:</p>
<ul><li>
<p><a href="#label-New+Element">New Element</a></p>
<ul><li>
<p><a href="#label-Task-3A+Create+a+Default+Element">Task: Create a Default Element</a></p>
</li><li>
<p><a href="#label-Task-3A+Create+a+Named+Element">Task: Create a Named Element</a></p>
</li><li>
<p><a href="#label-Task-3A+Create+an+Element+with+Name+and+Parent">Task: Create an Element with Name and Parent</a></p>
</li><li>
<p><a href="#label-Task-3A+Create+an+Element+with+Name-2C+Parent-2C+and+Context">Task: Create an Element with Name, Parent, and Context</a></p>
</li><li>
<p><a href="#label-Task-3A+Create+a+Shallow+Clone">Task: Create a Shallow Clone</a></p>
</li></ul>
</li><li>
<p><a href="#label-Attributes">Attributes</a></p>
<ul><li>
<p><a href="#label-Task-3A+Create+and+Add+an+Attribute">Task: Create and Add an Attribute</a></p>
</li><li>
<p><a href="#label-Task-3A+Add+an+Existing+Attribute">Task: Add an Existing Attribute</a></p>
</li><li>
<p><a href="#label-Task-3A+Add+Multiple+Attributes+from+a+Hash">Task: Add Multiple Attributes from a Hash</a></p>
</li><li>
<p><a href="#label-Task-3A+Add+Multiple+Attributes+from+an+Array">Task: Add Multiple Attributes from an Array</a></p>
</li><li>
<p><a href="#label-Task-3A+Retrieve+the+Value+for+an+Attribute+Name">Task: Retrieve the Value for an Attribute Name</a></p>
</li><li>
<p><a href="#label-Task-3A+Retrieve+the+Attribute+Value+for+a+Name+and+Namespace">Task: Retrieve the Attribute Value for a Name and Namespace</a></p>
</li><li>
<p><a href="#label-Task-3A+Delete+an+Attribute">Task: Delete an Attribute</a></p>
</li><li>
<p><a href="#label-Task-3A+Determine+Whether+the+Element+Has+Attributes">Task: Determine Whether the Element Has Attributes</a></p>
</li></ul>
</li><li>
<p><a href="#label-Children">Children</a></p>
<ul><li>
<p><a href="#label-Task-3A+Create+and+Add+an+Element">Task: Create and Add an Element</a></p>
</li><li>
<p><a href="#label-Task-3A+Add+an+Existing+Element">Task: Add an Existing Element</a></p>
</li><li>
<p><a href="#label-Task-3A+Create+and+Add+an+Element+with+Attributes">Task: Create and Add an Element with Attributes</a></p>
</li><li>
<p><a href="#label-Task-3A+Add+an+Existing+Element+with+Added+Attributes">Task: Add an Existing Element with Added Attributes</a></p>
</li><li>
<p><a href="#label-Task-3A+Delete+a+Specified+Element">Task: Delete a Specified Element</a></p>
</li><li>
<p><a href="#label-Task-3A+Delete+an+Element+by+Index">Task: Delete an Element by Index</a></p>
</li><li>
<p><a href="#label-Task-3A+Delete+an+Element+by+XPath">Task: Delete an Element by XPath</a></p>
</li><li>
<p><a href="#label-Task-3A+Determine+Whether+Element+Children">Task: Determine Whether Element Children</a></p>
</li><li>
<p><a href="#label-Task-3A+Get+Element+Descendants+by+XPath">Task: Get Element Descendants by XPath</a></p>
</li><li>
<p><a href="#label-Task-3A+Get+Next+Element+Sibling">Task: Get Next Element Sibling</a></p>
</li><li>
<p><a href="#label-Task-3A+Get+Previous+Element+Sibling">Task: Get Previous Element Sibling</a></p>
</li><li>
<p><a href="#label-Task-3A+Add+a+Text+Node">Task: Add a Text Node</a></p>
</li><li>
<p><a href="#label-Task-3A+Replace+the+First+Text+Node">Task: Replace the First Text Node</a></p>
</li><li>
<p><a href="#label-Task-3A+Remove+the+First+Text+Node">Task: Remove the First Text Node</a></p>
</li><li>
<p><a href="#label-Task-3A+Retrieve+the+First+Text+Node">Task: Retrieve the First Text Node</a></p>
</li><li>
<p><a href="#label-Task-3A+Retrieve+a+Specific+Text+Node">Task: Retrieve a Specific Text Node</a></p>
</li><li>
<p><a href="#label-Task-3A+Determine+Whether+the+Element+has+Text+Nodes">Task: Determine Whether the Element has Text Nodes</a></p>
</li><li>
<p><a href="#label-Task-3A+Get+the+Child+at+a+Given+Index">Task: Get the Child at a Given Index</a></p>
</li><li>
<p><a href="#label-Task-3A+Get+All+CDATA+Children">Task: Get All CDATA Children</a></p>
</li><li>
<p><a href="#label-Task-3A+Get+All+Comment+Children">Task: Get All Comment Children</a></p>
</li><li>
<p><a href="#label-Task-3A+Get+All+Processing+Instruction+Children">Task: Get All Processing Instruction Children</a></p>
</li><li>
<p><a href="#label-Task-3A+Get+All+Text+Children">Task: Get All Text Children</a></p>
</li></ul>
</li><li>
<p><a href="#label-Namespaces">Namespaces</a></p>
<ul><li>
<p><a href="#label-Task-3A+Add+a+Namespace">Task: Add a Namespace</a></p>
</li><li>
<p><a href="#label-Task-3A+Delete+the+Default+Namespace">Task: Delete the Default Namespace</a></p>
</li><li>
<p><a href="#label-Task-3A+Delete+a+Specific+Namespace">Task: Delete a Specific Namespace</a></p>
</li><li>
<p><a href="#label-Task-3A+Get+a+Namespace+URI">Task: Get a Namespace URI</a></p>
</li><li>
<p><a href="#label-Task-3A+Retrieve+Namespaces">Task: Retrieve Namespaces</a></p>
</li><li>
<p><a href="#label-Task-3A+Retrieve+Namespace+Prefixes">Task: Retrieve Namespace Prefixes</a></p>
</li></ul>
</li><li>
<p><a href="#label-Iteration">Iteration</a></p>
<ul><li>
<p><a href="#label-Task-3A+Iterate+Over+Elements">Task: Iterate Over Elements</a></p>
</li><li>
<p><a href="#label-Task-3A+Iterate+Over+Elements+Having+a+Specified+Attribute">Task: Iterate Over Elements Having a Specified Attribute</a></p>
</li><li>
<p><a href="#label-Task-3A+Iterate+Over+Elements+Having+a+Specified+Attribute+and+Value">Task: Iterate Over Elements Having a Specified Attribute and Value</a></p>
</li><li>
<p><a href="#label-Task-3A+Iterate+Over+Elements+Having+Specified+Text">Task: Iterate Over Elements Having Specified Text</a></p>
</li></ul>
</li><li>
<p><a href="#label-Context">Context</a></p>
</li><li>
<p><a href="#label-Other+Getters">Other Getters</a></p>
</li></ul>

<h3 id="label-New+Element">New Element<span><a href="#label-New+Element">&para;</a> <a href="#top">&uarr;</a></span></h3>

<h4 id="label-Task-3A+Create+a+Default+Element">Task: Create a Default Element<span><a href="#label-Task-3A+Create+a+Default+Element">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-c-new">Element::new</a> with no arguments to create a default element:</p>

<pre class="ruby"><span class="ruby-identifier">e</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Element</span>.<span class="ruby-identifier">new</span>
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">name</span>    <span class="ruby-comment"># =&gt; &quot;UNDEFINED&quot;</span>
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">parent</span>  <span class="ruby-comment"># =&gt; nil</span>
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">context</span> <span class="ruby-comment"># =&gt; nil</span>
</pre>

<h4 id="label-Task-3A+Create+a+Named+Element">Task: Create a Named Element<span><a href="#label-Task-3A+Create+a+Named+Element">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-c-new">Element::new</a> with a string name argument to create a named element:</p>

<pre class="ruby"><span class="ruby-identifier">e</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Element</span>.<span class="ruby-identifier">new</span>(<span class="ruby-string">&#39;foo&#39;</span>)
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">name</span>    <span class="ruby-comment"># =&gt; &quot;foo&quot;</span>
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">parent</span>  <span class="ruby-comment"># =&gt; nil</span>
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">context</span> <span class="ruby-comment"># =&gt; nil</span>
</pre>

<h4 id="label-Task-3A+Create+an+Element+with+Name+and+Parent">Task: Create an Element with Name and Parent<span><a href="#label-Task-3A+Create+an+Element+with+Name+and+Parent">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-c-new">Element::new</a> with name and parent arguments to create an element with name and parent:</p>

<pre class="ruby"><span class="ruby-identifier">p</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Parent</span>.<span class="ruby-identifier">new</span>
<span class="ruby-identifier">e</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Element</span>.<span class="ruby-identifier">new</span>(<span class="ruby-string">&#39;foo&#39;</span>, <span class="ruby-identifier">p</span>)
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">name</span>    <span class="ruby-comment"># =&gt; &quot;foo&quot;</span>
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">parent</span>  <span class="ruby-comment"># =&gt; #&lt;REXML::Parent @parent=nil, @children=[&lt;foo/&gt;]&gt;</span>
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">context</span> <span class="ruby-comment"># =&gt; nil</span>
</pre>

<h4 id="label-Task-3A+Create+an+Element+with+Name-2C+Parent-2C+and+Context">Task: Create an Element with Name, Parent, and Context<span><a href="#label-Task-3A+Create+an+Element+with+Name-2C+Parent-2C+and+Context">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-c-new">Element::new</a> with name, parent, and context arguments to create an element with name, parent, and context:</p>

<pre class="ruby"><span class="ruby-identifier">p</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Parent</span>.<span class="ruby-identifier">new</span>
<span class="ruby-identifier">e</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Element</span>.<span class="ruby-identifier">new</span>(<span class="ruby-string">&#39;foo&#39;</span>, <span class="ruby-identifier">p</span>, {<span class="ruby-value">compress_whitespace:</span> <span class="ruby-value">:all</span>})
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">name</span>    <span class="ruby-comment"># =&gt; &quot;foo&quot;</span>
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">parent</span>  <span class="ruby-comment"># =&gt; #&lt;REXML::Parent @parent=nil, @children=[&lt;foo/&gt;]&gt;</span>
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">context</span> <span class="ruby-comment"># =&gt; {:compress_whitespace=&gt;:all}</span>
</pre>

<h4 id="label-Task-3A+Create+a+Shallow+Clone">Task: Create a Shallow Clone<span><a href="#label-Task-3A+Create+a+Shallow+Clone">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-clone">Element#clone</a> to create a shallow clone of an element, copying only the name, attributes, and context:</p>

<pre class="ruby"><span class="ruby-identifier">e0</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Element</span>.<span class="ruby-identifier">new</span>(<span class="ruby-string">&#39;foo&#39;</span>, <span class="ruby-keyword">nil</span>, {<span class="ruby-value">compress_whitespace:</span> <span class="ruby-value">:all</span>})
<span class="ruby-identifier">e0</span>.<span class="ruby-identifier">add_attribute</span>(<span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Attribute</span>.<span class="ruby-identifier">new</span>(<span class="ruby-string">&#39;bar&#39;</span>, <span class="ruby-string">&#39;baz&#39;</span>))
<span class="ruby-identifier">e0</span>.<span class="ruby-identifier">context</span> = {<span class="ruby-value">compress_whitespace:</span> <span class="ruby-value">:all</span>}
<span class="ruby-identifier">e1</span> = <span class="ruby-identifier">e0</span>.<span class="ruby-identifier">clone</span> <span class="ruby-comment"># =&gt; &lt;foo bar=&#39;baz&#39;/&gt;</span>
<span class="ruby-identifier">e1</span>.<span class="ruby-identifier">name</span> <span class="ruby-comment"># =&gt; &quot;foo&quot;</span>
<span class="ruby-identifier">e1</span>.<span class="ruby-identifier">context</span> <span class="ruby-comment"># =&gt; {:compress_whitespace=&gt;:all}</span>
</pre>

<h3 id="label-Attributes">Attributes<span><a href="#label-Attributes">&para;</a> <a href="#top">&uarr;</a></span></h3>

<h4 id="label-Task-3A+Create+and+Add+an+Attribute">Task: Create and Add an Attribute<span><a href="#label-Task-3A+Create+and+Add+an+Attribute">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-add_attribute">Element#add_attribute</a> to create and add an attribute:</p>

<pre class="ruby"><span class="ruby-identifier">e</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Element</span>.<span class="ruby-identifier">new</span>
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">add_attribute</span>(<span class="ruby-string">&#39;attr&#39;</span>, <span class="ruby-string">&#39;value&#39;</span>) <span class="ruby-comment"># =&gt; &quot;value&quot;</span>
<span class="ruby-identifier">e</span>[<span class="ruby-string">&#39;attr&#39;</span>] <span class="ruby-comment"># =&gt; &quot;value&quot;</span>
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">add_attribute</span>(<span class="ruby-string">&#39;attr&#39;</span>, <span class="ruby-string">&#39;VALUE&#39;</span>) <span class="ruby-comment"># =&gt; &quot;VALUE&quot;</span>
<span class="ruby-identifier">e</span>[<span class="ruby-string">&#39;attr&#39;</span>] <span class="ruby-comment"># =&gt; &quot;VALUE&quot;</span>
</pre>

<h4 id="label-Task-3A+Add+an+Existing+Attribute">Task: Add an Existing Attribute<span><a href="#label-Task-3A+Add+an+Existing+Attribute">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-add_attribute">Element#add_attribute</a> to add an existing attribute:</p>

<pre class="ruby"><span class="ruby-identifier">e</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Element</span>.<span class="ruby-identifier">new</span>
<span class="ruby-identifier">a</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Attribute</span>.<span class="ruby-identifier">new</span>(<span class="ruby-string">&#39;attr&#39;</span>, <span class="ruby-string">&#39;value&#39;</span>)
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">add_attribute</span>(<span class="ruby-identifier">a</span>)
<span class="ruby-identifier">e</span>[<span class="ruby-string">&#39;attr&#39;</span>] <span class="ruby-comment"># =&gt; &quot;value&quot;</span>
<span class="ruby-identifier">a</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Attribute</span>.<span class="ruby-identifier">new</span>(<span class="ruby-string">&#39;attr&#39;</span>, <span class="ruby-string">&#39;VALUE&#39;</span>)
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">add_attribute</span>(<span class="ruby-identifier">a</span>)
<span class="ruby-identifier">e</span>[<span class="ruby-string">&#39;attr&#39;</span>] <span class="ruby-comment"># =&gt; &quot;VALUE&quot;</span>
</pre>

<h4 id="label-Task-3A+Add+Multiple+Attributes+from+a+Hash">Task: Add Multiple Attributes from a Hash<span><a href="#label-Task-3A+Add+Multiple+Attributes+from+a+Hash">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-add_attributes">Element#add_attributes</a> to add multiple attributes from a hash:</p>

<pre class="ruby"><span class="ruby-identifier">e</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Element</span>.<span class="ruby-identifier">new</span>
<span class="ruby-identifier">h</span> = {<span class="ruby-string">&#39;foo&#39;</span> <span class="ruby-operator">=&gt;</span> <span class="ruby-value">0</span>, <span class="ruby-string">&#39;bar&#39;</span> <span class="ruby-operator">=&gt;</span> <span class="ruby-value">1</span>}
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">add_attributes</span>(<span class="ruby-identifier">h</span>)
<span class="ruby-identifier">e</span>[<span class="ruby-string">&#39;foo&#39;</span>] <span class="ruby-comment"># =&gt; &quot;0&quot;</span>
<span class="ruby-identifier">e</span>[<span class="ruby-string">&#39;bar&#39;</span>] <span class="ruby-comment"># =&gt; &quot;1&quot;</span>
</pre>

<h4 id="label-Task-3A+Add+Multiple+Attributes+from+an+Array">Task: Add Multiple Attributes from an Array<span><a href="#label-Task-3A+Add+Multiple+Attributes+from+an+Array">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-add_attributes">Element#add_attributes</a> to add multiple attributes from an array:</p>

<pre class="ruby"><span class="ruby-identifier">e</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Element</span>.<span class="ruby-identifier">new</span>
<span class="ruby-identifier">a</span> = [[<span class="ruby-string">&#39;foo&#39;</span>, <span class="ruby-value">0</span>], [<span class="ruby-string">&#39;bar&#39;</span>, <span class="ruby-value">1</span>]]
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">add_attributes</span>(<span class="ruby-identifier">a</span>)
<span class="ruby-identifier">e</span>[<span class="ruby-string">&#39;foo&#39;</span>] <span class="ruby-comment"># =&gt; &quot;0&quot;</span>
<span class="ruby-identifier">e</span>[<span class="ruby-string">&#39;bar&#39;</span>] <span class="ruby-comment"># =&gt; &quot;1&quot;</span>
</pre>

<h4 id="label-Task-3A+Retrieve+the+Value+for+an+Attribute+Name">Task: Retrieve the Value for an Attribute Name<span><a href="#label-Task-3A+Retrieve+the+Value+for+an+Attribute+Name">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-5B-5D">Element#[]</a> to retrieve the value for an attribute name:</p>

<pre class="ruby"><span class="ruby-identifier">e</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Element</span>.<span class="ruby-identifier">new</span>
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">add_attribute</span>(<span class="ruby-string">&#39;attr&#39;</span>, <span class="ruby-string">&#39;value&#39;</span>) <span class="ruby-comment"># =&gt; &quot;value&quot;</span>
<span class="ruby-identifier">e</span>[<span class="ruby-string">&#39;attr&#39;</span>] <span class="ruby-comment"># =&gt; &quot;value&quot;</span>
</pre>

<h4 id="label-Task-3A+Retrieve+the+Attribute+Value+for+a+Name+and+Namespace">Task: Retrieve the Attribute Value for a Name and Namespace<span><a href="#label-Task-3A+Retrieve+the+Attribute+Value+for+a+Name+and+Namespace">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-attribute">Element#attribute</a> to retrieve the value for an attribute name:</p>

<pre class="ruby"><span class="ruby-identifier">xml_string</span> = <span class="ruby-string">&quot;&lt;root xmlns:a=&#39;a&#39; a:x=&#39;a:x&#39; x=&#39;x&#39;/&gt;&quot;</span>
<span class="ruby-identifier">d</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Document</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">xml_string</span>)
<span class="ruby-identifier">e</span> = <span class="ruby-identifier">d</span>.<span class="ruby-identifier">root</span>
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">attribute</span>(<span class="ruby-string">&quot;x&quot;</span>)      <span class="ruby-comment"># =&gt; x=&#39;x&#39;</span>
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">attribute</span>(<span class="ruby-string">&quot;x&quot;</span>, <span class="ruby-string">&quot;a&quot;</span>) <span class="ruby-comment"># =&gt; a:x=&#39;a:x&#39;</span>
</pre>

<h4 id="label-Task-3A+Delete+an+Attribute">Task: Delete an Attribute<span><a href="#label-Task-3A+Delete+an+Attribute">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-delete_attribute">Element#delete_attribute</a> to remove an attribute:</p>

<pre class="ruby"><span class="ruby-identifier">e</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Element</span>.<span class="ruby-identifier">new</span>(<span class="ruby-string">&#39;foo&#39;</span>)
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">add_attribute</span>(<span class="ruby-string">&#39;bar&#39;</span>, <span class="ruby-string">&#39;baz&#39;</span>)
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">delete_attribute</span>(<span class="ruby-string">&#39;bar&#39;</span>)
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">delete_attribute</span>(<span class="ruby-string">&#39;bar&#39;</span>)
<span class="ruby-identifier">e</span>[<span class="ruby-string">&#39;bar&#39;</span>] <span class="ruby-comment"># =&gt; nil</span>
</pre>

<h4 id="label-Task-3A+Determine+Whether+the+Element+Has+Attributes">Task: Determine Whether the Element Has Attributes<span><a href="#label-Task-3A+Determine+Whether+the+Element+Has+Attributes">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-has_attributes-3F">Element#has_attributes?</a> to determine whether the element has attributes:</p>

<pre class="ruby"><span class="ruby-identifier">e</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Element</span>.<span class="ruby-identifier">new</span>(<span class="ruby-string">&#39;foo&#39;</span>)
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">has_attributes?</span> <span class="ruby-comment"># =&gt; false</span>
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">add_attribute</span>(<span class="ruby-string">&#39;bar&#39;</span>, <span class="ruby-string">&#39;baz&#39;</span>)
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">has_attributes?</span> <span class="ruby-comment"># =&gt; true</span>
</pre>

<h3 id="label-Children">Children<span><a href="#label-Children">&para;</a> <a href="#top">&uarr;</a></span></h3>

<p><em>Element Children</em></p>

<h4 id="label-Task-3A+Create+and+Add+an+Element">Task: Create and Add an Element<span><a href="#label-Task-3A+Create+and+Add+an+Element">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-add_element">Element#add_element</a> to create a new element and add it to this element:</p>

<pre class="ruby"><span class="ruby-identifier">e0</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Element</span>.<span class="ruby-identifier">new</span>(<span class="ruby-string">&#39;foo&#39;</span>)
<span class="ruby-identifier">e0</span>.<span class="ruby-identifier">add_element</span>(<span class="ruby-string">&#39;bar&#39;</span>)
<span class="ruby-identifier">e0</span>.<span class="ruby-identifier">children</span> <span class="ruby-comment"># =&gt; [&lt;bar/&gt;]</span>
</pre>

<h4 id="label-Task-3A+Add+an+Existing+Element">Task: Add an Existing Element<span><a href="#label-Task-3A+Add+an+Existing+Element">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-add_element">Element#add_element</a> to add an element to this element:</p>

<pre class="ruby"><span class="ruby-identifier">e0</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Element</span>.<span class="ruby-identifier">new</span>(<span class="ruby-string">&#39;foo&#39;</span>)
<span class="ruby-identifier">e1</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Element</span>.<span class="ruby-identifier">new</span>(<span class="ruby-string">&#39;bar&#39;</span>)
<span class="ruby-identifier">e0</span>.<span class="ruby-identifier">add_element</span>(<span class="ruby-identifier">e1</span>)
<span class="ruby-identifier">e0</span>.<span class="ruby-identifier">children</span> <span class="ruby-comment"># =&gt; [&lt;bar/&gt;]</span>
</pre>

<h4 id="label-Task-3A+Create+and+Add+an+Element+with+Attributes">Task: Create and Add an Element with Attributes<span><a href="#label-Task-3A+Create+and+Add+an+Element+with+Attributes">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-add_element">Element#add_element</a> to create a new element with attributes, and add it to this element:</p>

<pre class="ruby"><span class="ruby-identifier">e0</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Element</span>.<span class="ruby-identifier">new</span>(<span class="ruby-string">&#39;foo&#39;</span>)
<span class="ruby-identifier">e0</span>.<span class="ruby-identifier">add_element</span>(<span class="ruby-string">&#39;bar&#39;</span>, {<span class="ruby-string">&#39;name&#39;</span> <span class="ruby-operator">=&gt;</span> <span class="ruby-string">&#39;value&#39;</span>})
<span class="ruby-identifier">e0</span>.<span class="ruby-identifier">children</span> <span class="ruby-comment"># =&gt; [&lt;bar name=&#39;value&#39;/&gt;]</span>
</pre>

<h4 id="label-Task-3A+Add+an+Existing+Element+with+Added+Attributes">Task: Add an Existing Element with Added Attributes<span><a href="#label-Task-3A+Add+an+Existing+Element+with+Added+Attributes">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-add_element">Element#add_element</a> to add an element to this element:</p>

<pre class="ruby"><span class="ruby-identifier">e0</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Element</span>.<span class="ruby-identifier">new</span>(<span class="ruby-string">&#39;foo&#39;</span>)
<span class="ruby-identifier">e1</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Element</span>.<span class="ruby-identifier">new</span>(<span class="ruby-string">&#39;bar&#39;</span>)
<span class="ruby-identifier">e0</span>.<span class="ruby-identifier">add_element</span>(<span class="ruby-identifier">e1</span>, {<span class="ruby-string">&#39;name&#39;</span> <span class="ruby-operator">=&gt;</span> <span class="ruby-string">&#39;value&#39;</span>})
<span class="ruby-identifier">e0</span>.<span class="ruby-identifier">children</span> <span class="ruby-comment"># =&gt; [&lt;bar name=&#39;value&#39;/&gt;]</span>
</pre>

<h4 id="label-Task-3A+Delete+a+Specified+Element">Task: Delete a Specified Element<span><a href="#label-Task-3A+Delete+a+Specified+Element">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-delete_element">Element#delete_element</a> to remove a specified element from this element:</p>

<pre class="ruby"><span class="ruby-identifier">e0</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Element</span>.<span class="ruby-identifier">new</span>(<span class="ruby-string">&#39;foo&#39;</span>)
<span class="ruby-identifier">e1</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Element</span>.<span class="ruby-identifier">new</span>(<span class="ruby-string">&#39;bar&#39;</span>)
<span class="ruby-identifier">e0</span>.<span class="ruby-identifier">add_element</span>(<span class="ruby-identifier">e1</span>)
<span class="ruby-identifier">e0</span>.<span class="ruby-identifier">children</span> <span class="ruby-comment"># =&gt; [&lt;bar/&gt;]</span>
<span class="ruby-identifier">e0</span>.<span class="ruby-identifier">delete_element</span>(<span class="ruby-identifier">e1</span>)
<span class="ruby-identifier">e0</span>.<span class="ruby-identifier">children</span> <span class="ruby-comment"># =&gt; []</span>
</pre>

<h4 id="label-Task-3A+Delete+an+Element+by+Index">Task: Delete an Element by Index<span><a href="#label-Task-3A+Delete+an+Element+by+Index">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-delete_element">Element#delete_element</a> to remove an element from this element by index:</p>

<pre class="ruby"><span class="ruby-identifier">e0</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Element</span>.<span class="ruby-identifier">new</span>(<span class="ruby-string">&#39;foo&#39;</span>)
<span class="ruby-identifier">e1</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Element</span>.<span class="ruby-identifier">new</span>(<span class="ruby-string">&#39;bar&#39;</span>)
<span class="ruby-identifier">e0</span>.<span class="ruby-identifier">add_element</span>(<span class="ruby-identifier">e1</span>)
<span class="ruby-identifier">e0</span>.<span class="ruby-identifier">children</span> <span class="ruby-comment"># =&gt; [&lt;bar/&gt;]</span>
<span class="ruby-identifier">e0</span>.<span class="ruby-identifier">delete_element</span>(<span class="ruby-value">1</span>)
<span class="ruby-identifier">e0</span>.<span class="ruby-identifier">children</span> <span class="ruby-comment"># =&gt; []</span>
</pre>

<h4 id="label-Task-3A+Delete+an+Element+by+XPath">Task: Delete an Element by XPath<span><a href="#label-Task-3A+Delete+an+Element+by+XPath">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-delete_element">Element#delete_element</a> to remove an element from this element by XPath:</p>

<pre class="ruby"><span class="ruby-identifier">e0</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Element</span>.<span class="ruby-identifier">new</span>(<span class="ruby-string">&#39;foo&#39;</span>)
<span class="ruby-identifier">e1</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Element</span>.<span class="ruby-identifier">new</span>(<span class="ruby-string">&#39;bar&#39;</span>)
<span class="ruby-identifier">e0</span>.<span class="ruby-identifier">add_element</span>(<span class="ruby-identifier">e1</span>)
<span class="ruby-identifier">e0</span>.<span class="ruby-identifier">children</span> <span class="ruby-comment"># =&gt; [&lt;bar/&gt;]</span>
<span class="ruby-identifier">e0</span>.<span class="ruby-identifier">delete_element</span>(<span class="ruby-string">&#39;//bar/&#39;</span>)
<span class="ruby-identifier">e0</span>.<span class="ruby-identifier">children</span> <span class="ruby-comment"># =&gt; []</span>
</pre>

<h4 id="label-Task-3A+Determine+Whether+Element+Children">Task: Determine Whether Element Children<span><a href="#label-Task-3A+Determine+Whether+Element+Children">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-has_elements-3F">Element#has_elements?</a> to determine whether the element has element children:</p>

<pre class="ruby"><span class="ruby-identifier">e0</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Element</span>.<span class="ruby-identifier">new</span>(<span class="ruby-string">&#39;foo&#39;</span>)
<span class="ruby-identifier">e0</span>.<span class="ruby-identifier">has_elements?</span> <span class="ruby-comment"># =&gt; false</span>
<span class="ruby-identifier">e0</span>.<span class="ruby-identifier">add_element</span>(<span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Element</span>.<span class="ruby-identifier">new</span>(<span class="ruby-string">&#39;bar&#39;</span>))
<span class="ruby-identifier">e0</span>.<span class="ruby-identifier">has_elements?</span> <span class="ruby-comment"># =&gt; true</span>
</pre>

<h4 id="label-Task-3A+Get+Element+Descendants+by+XPath">Task: Get Element Descendants by XPath<span><a href="#label-Task-3A+Get+Element+Descendants+by+XPath">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-get_elements">Element#get_elements</a> to fetch all element descendant children by XPath:</p>

<pre class="ruby"><span class="ruby-identifier">xml_string</span> = <span class="ruby-identifier">&lt;&lt;-EOT</span>
<span class="ruby-value">&lt;root&gt;
  &lt;a level=&#39;1&#39;&gt;
    &lt;a level=&#39;2&#39;/&gt;
  &lt;/a&gt;
&lt;/root&gt;
</span><span class="ruby-identifier">EOT</span>
<span class="ruby-identifier">d</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Document</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">xml_string</span>)
<span class="ruby-identifier">d</span>.<span class="ruby-identifier">root</span>.<span class="ruby-identifier">get_elements</span>(<span class="ruby-string">&#39;//a&#39;</span>) <span class="ruby-comment"># =&gt; [&lt;a level=&#39;1&#39;&gt; ... &lt;/&gt;, &lt;a level=&#39;2&#39;/&gt;]</span>
</pre>

<h4 id="label-Task-3A+Get+Next+Element+Sibling">Task: Get Next Element Sibling<span><a href="#label-Task-3A+Get+Next+Element+Sibling">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-next_element">Element#next_element</a> to retrieve the next element sibling:</p>

<pre class="ruby"><span class="ruby-identifier">d</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Document</span>.<span class="ruby-identifier">new</span> <span class="ruby-string">&#39;&lt;a&gt;&lt;b/&gt;text&lt;c/&gt;&lt;/a&gt;&#39;</span>
<span class="ruby-identifier">d</span>.<span class="ruby-identifier">root</span>.<span class="ruby-identifier">elements</span>[<span class="ruby-string">&#39;b&#39;</span>].<span class="ruby-identifier">next_element</span> <span class="ruby-comment">#-&gt; &lt;c/&gt;</span>
<span class="ruby-identifier">d</span>.<span class="ruby-identifier">root</span>.<span class="ruby-identifier">elements</span>[<span class="ruby-string">&#39;c&#39;</span>].<span class="ruby-identifier">next_element</span> <span class="ruby-comment">#-&gt; nil</span>
</pre>

<h4 id="label-Task-3A+Get+Previous+Element+Sibling">Task: Get Previous Element Sibling<span><a href="#label-Task-3A+Get+Previous+Element+Sibling">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-previous_element">Element#previous_element</a> to retrieve the previous element sibling:</p>

<pre class="ruby"><span class="ruby-identifier">d</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Document</span>.<span class="ruby-identifier">new</span> <span class="ruby-string">&#39;&lt;a&gt;&lt;b/&gt;text&lt;c/&gt;&lt;/a&gt;&#39;</span>
<span class="ruby-identifier">d</span>.<span class="ruby-identifier">root</span>.<span class="ruby-identifier">elements</span>[<span class="ruby-string">&#39;c&#39;</span>].<span class="ruby-identifier">previous_element</span> <span class="ruby-comment">#-&gt; &lt;b/&gt;</span>
<span class="ruby-identifier">d</span>.<span class="ruby-identifier">root</span>.<span class="ruby-identifier">elements</span>[<span class="ruby-string">&#39;b&#39;</span>].<span class="ruby-identifier">previous_element</span> <span class="ruby-comment">#-&gt; nil</span>
</pre>

<p><em>Text Children</em></p>

<h4 id="label-Task-3A+Add+a+Text+Node">Task: Add a Text Node<span><a href="#label-Task-3A+Add+a+Text+Node">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-add_text">Element#add_text</a> to add a text node to the element:</p>

<pre class="ruby"><span class="ruby-identifier">d</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Document</span>.<span class="ruby-identifier">new</span>(<span class="ruby-string">&#39;&lt;a&gt;foo&lt;b/&gt;bar&lt;/a&gt;&#39;</span>)
<span class="ruby-identifier">e</span> = <span class="ruby-identifier">d</span>.<span class="ruby-identifier">root</span>
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">add_text</span>(<span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Text</span>.<span class="ruby-identifier">new</span>(<span class="ruby-string">&#39;baz&#39;</span>))
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">to_a</span> <span class="ruby-comment"># =&gt; [&quot;foo&quot;, &lt;b/&gt;, &quot;bar&quot;, &quot;baz&quot;]</span>
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">add_text</span>(<span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Text</span>.<span class="ruby-identifier">new</span>(<span class="ruby-string">&#39;baz&#39;</span>))
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">to_a</span> <span class="ruby-comment"># =&gt; [&quot;foo&quot;, &lt;b/&gt;, &quot;bar&quot;, &quot;baz&quot;, &quot;baz&quot;]</span>
</pre>

<h4 id="label-Task-3A+Replace+the+First+Text+Node">Task: Replace the First Text Node<span><a href="#label-Task-3A+Replace+the+First+Text+Node">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-text-3D">Element#text=</a> to replace the first text node in the element:</p>

<pre class="ruby"><span class="ruby-identifier">d</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Document</span>.<span class="ruby-identifier">new</span>(<span class="ruby-string">&#39;&lt;root&gt;&lt;a/&gt;text&lt;b/&gt;more&lt;c/&gt;&lt;/root&gt;&#39;</span>)
<span class="ruby-identifier">e</span> = <span class="ruby-identifier">d</span>.<span class="ruby-identifier">root</span>
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">to_a</span> <span class="ruby-comment"># =&gt; [&lt;a/&gt;, &quot;text&quot;, &lt;b/&gt;, &quot;more&quot;, &lt;c/&gt;]</span>
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">text</span> = <span class="ruby-string">&#39;oops&#39;</span>
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">to_a</span> <span class="ruby-comment"># =&gt; [&lt;a/&gt;, &quot;oops&quot;, &lt;b/&gt;, &quot;more&quot;, &lt;c/&gt;]</span>
</pre>

<h4 id="label-Task-3A+Remove+the+First+Text+Node">Task: Remove the First Text Node<span><a href="#label-Task-3A+Remove+the+First+Text+Node">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-text-3D">Element#text=</a> to remove the first text node in the element:</p>

<pre class="ruby"><span class="ruby-identifier">d</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Document</span>.<span class="ruby-identifier">new</span>(<span class="ruby-string">&#39;&lt;root&gt;&lt;a/&gt;text&lt;b/&gt;more&lt;c/&gt;&lt;/root&gt;&#39;</span>)
<span class="ruby-identifier">e</span> = <span class="ruby-identifier">d</span>.<span class="ruby-identifier">root</span>
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">to_a</span> <span class="ruby-comment"># =&gt; [&lt;a/&gt;, &quot;text&quot;, &lt;b/&gt;, &quot;more&quot;, &lt;c/&gt;]</span>
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">text</span> = <span class="ruby-keyword">nil</span>
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">to_a</span> <span class="ruby-comment"># =&gt; [&lt;a/&gt;, &lt;b/&gt;, &quot;more&quot;, &lt;c/&gt;]</span>
</pre>

<h4 id="label-Task-3A+Retrieve+the+First+Text+Node">Task: Retrieve the First Text Node<span><a href="#label-Task-3A+Retrieve+the+First+Text+Node">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-get_text">Element#get_text</a> to retrieve the first text node in the element:</p>

<pre class="ruby"><span class="ruby-identifier">d</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Document</span>.<span class="ruby-identifier">new</span>(<span class="ruby-string">&#39;&lt;root&gt;&lt;a/&gt;text&lt;b/&gt;more&lt;c/&gt;&lt;/root&gt;&#39;</span>)
<span class="ruby-identifier">e</span> = <span class="ruby-identifier">d</span>.<span class="ruby-identifier">root</span>
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">to_a</span> <span class="ruby-comment"># =&gt; [&lt;a/&gt;, &quot;text&quot;, &lt;b/&gt;, &quot;more&quot;, &lt;c/&gt;]</span>
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">get_text</span> <span class="ruby-comment"># =&gt; &quot;text&quot;</span>
</pre>

<h4 id="label-Task-3A+Retrieve+a+Specific+Text+Node">Task: Retrieve a Specific Text Node<span><a href="#label-Task-3A+Retrieve+a+Specific+Text+Node">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-get_text">Element#get_text</a> to retrieve the first text node in a specified element:</p>

<pre class="ruby"><span class="ruby-identifier">d</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Document</span>.<span class="ruby-identifier">new</span> <span class="ruby-string">&quot;&lt;root&gt;some text &lt;b&gt;this is bold!&lt;/b&gt; more text&lt;/root&gt;&quot;</span>
<span class="ruby-identifier">e</span> = <span class="ruby-identifier">d</span>.<span class="ruby-identifier">root</span>
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">get_text</span>(<span class="ruby-string">&#39;//root&#39;</span>) <span class="ruby-comment"># =&gt; &quot;some text &quot;</span>
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">get_text</span>(<span class="ruby-string">&#39;//b&#39;</span>)    <span class="ruby-comment"># =&gt; &quot;this is bold!&quot;</span>
</pre>

<h4 id="label-Task-3A+Determine+Whether+the+Element+has+Text+Nodes">Task: Determine Whether the Element has Text Nodes<span><a href="#label-Task-3A+Determine+Whether+the+Element+has+Text+Nodes">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-has_text-3F">Element#has_text?</a> to determine whether the element has text:</p>

<pre class="ruby"><span class="ruby-identifier">e</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Element</span>.<span class="ruby-identifier">new</span>(<span class="ruby-string">&#39;foo&#39;</span>)
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">has_text?</span> <span class="ruby-comment"># =&gt; false</span>
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">add_text</span>(<span class="ruby-string">&#39;bar&#39;</span>)
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">has_text?</span> <span class="ruby-comment"># =&gt; true</span>
</pre>

<p><em>Other Children</em></p>

<h4 id="label-Task-3A+Get+the+Child+at+a+Given+Index">Task: Get the Child at a Given Index<span><a href="#label-Task-3A+Get+the+Child+at+a+Given+Index">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-5B-5D">Element#[]</a> to retrieve the child at a given index:</p>

<pre class="ruby"><span class="ruby-identifier">d</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Document</span>.<span class="ruby-identifier">new</span> <span class="ruby-string">&#39;&gt;&lt;root&gt;&lt;a/&gt;text&lt;b/&gt;more&lt;c/&gt;&lt;/root&gt;&#39;</span>
<span class="ruby-identifier">e</span> = <span class="ruby-identifier">d</span>.<span class="ruby-identifier">root</span>
<span class="ruby-identifier">e</span>[<span class="ruby-value">0</span>] <span class="ruby-comment"># =&gt; &lt;a/&gt;</span>
<span class="ruby-identifier">e</span>[<span class="ruby-value">1</span>] <span class="ruby-comment"># =&gt; &quot;text&quot;</span>
<span class="ruby-identifier">e</span>[<span class="ruby-value">2</span>] <span class="ruby-comment"># =&gt; &lt;b/&gt;</span>
</pre>

<h4 id="label-Task-3A+Get+All+CDATA+Children">Task: Get All CDATA Children<span><a href="#label-Task-3A+Get+All+CDATA+Children">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-cdatas">Element#cdatas</a> to retrieve all CDATA children:</p>

<pre class="ruby"><span class="ruby-identifier">xml_string</span> = <span class="ruby-identifier">&lt;&lt;-EOT</span>
<span class="ruby-value">  &lt;root&gt;
    &lt;![CDATA[foo]]&gt;
    &lt;![CDATA[bar]]&gt;
  &lt;/root&gt;
</span><span class="ruby-identifier">EOT</span>
<span class="ruby-identifier">d</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Document</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">xml_string</span>)
<span class="ruby-identifier">d</span>.<span class="ruby-identifier">root</span>.<span class="ruby-identifier">cdatas</span> <span class="ruby-comment"># =&gt; [&quot;foo&quot;, &quot;bar&quot;]</span>
</pre>

<h4 id="label-Task-3A+Get+All+Comment+Children">Task: Get All Comment Children<span><a href="#label-Task-3A+Get+All+Comment+Children">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-comments">Element#comments</a> to retrieve all comment children:</p>

<pre class="ruby"><span class="ruby-identifier">xml_string</span> = <span class="ruby-identifier">&lt;&lt;-EOT</span>
<span class="ruby-value">  &lt;root&gt;
    &lt;!--foo--&gt;
    &lt;!--bar--&gt;
  &lt;/root&gt;
</span><span class="ruby-identifier">EOT</span>
<span class="ruby-identifier">d</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Document</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">xml_string</span>)
<span class="ruby-identifier">d</span>.<span class="ruby-identifier">root</span>.<span class="ruby-identifier">comments</span>.<span class="ruby-identifier">map</span> {<span class="ruby-operator">|</span><span class="ruby-identifier">comment</span><span class="ruby-operator">|</span> <span class="ruby-identifier">comment</span>.<span class="ruby-identifier">to_s</span> } <span class="ruby-comment"># =&gt; [&quot;foo&quot;, &quot;bar&quot;]</span>
</pre>

<h4 id="label-Task-3A+Get+All+Processing+Instruction+Children">Task: Get All Processing Instruction Children<span><a href="#label-Task-3A+Get+All+Processing+Instruction+Children">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-instructions">Element#instructions</a> to retrieve all processing instruction children:</p>

<pre class="ruby"><span class="ruby-identifier">xml_string</span> = <span class="ruby-identifier">&lt;&lt;-EOT</span>
<span class="ruby-value">  &lt;root&gt;
    &lt;?target0 foo?&gt;
    &lt;?target1 bar?&gt;
  &lt;/root&gt;
</span><span class="ruby-identifier">EOT</span>
<span class="ruby-identifier">d</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Document</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">xml_string</span>)
<span class="ruby-identifier">instructions</span> = <span class="ruby-identifier">d</span>.<span class="ruby-identifier">root</span>.<span class="ruby-identifier">instructions</span>.<span class="ruby-identifier">map</span> {<span class="ruby-operator">|</span><span class="ruby-identifier">instruction</span><span class="ruby-operator">|</span> <span class="ruby-identifier">instruction</span>.<span class="ruby-identifier">to_s</span> }
<span class="ruby-identifier">instructions</span> <span class="ruby-comment"># =&gt; [&quot;&lt;?target0 foo?&gt;&quot;, &quot;&lt;?target1 bar?&gt;&quot;]</span>
</pre>

<h4 id="label-Task-3A+Get+All+Text+Children">Task: Get All Text Children<span><a href="#label-Task-3A+Get+All+Text+Children">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-texts">Element#texts</a> to retrieve all text children:</p>

<pre class="ruby"><span class="ruby-identifier">xml_string</span> = <span class="ruby-string">&#39;&lt;root&gt;&lt;a/&gt;text&lt;b/&gt;more&lt;c/&gt;&lt;/root&gt;&#39;</span>
<span class="ruby-identifier">d</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Document</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">xml_string</span>)
<span class="ruby-identifier">d</span>.<span class="ruby-identifier">root</span>.<span class="ruby-identifier">texts</span> <span class="ruby-comment"># =&gt; [&quot;text&quot;, &quot;more&quot;]</span>
</pre>

<h3 id="label-Namespaces">Namespaces<span><a href="#label-Namespaces">&para;</a> <a href="#top">&uarr;</a></span></h3>

<h4 id="label-Task-3A+Add+a+Namespace">Task: Add a Namespace<span><a href="#label-Task-3A+Add+a+Namespace">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-add_namespace">Element#add_namespace</a> to add a namespace to the element:</p>

<pre class="ruby"><span class="ruby-identifier">e</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Element</span>.<span class="ruby-identifier">new</span>(<span class="ruby-string">&#39;foo&#39;</span>)
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">add_namespace</span>(<span class="ruby-string">&#39;bar&#39;</span>)
<span class="ruby-identifier">e</span>.<span class="ruby-identifier">namespaces</span> <span class="ruby-comment"># =&gt; {&quot;xmlns&quot;=&gt;&quot;bar&quot;}</span>
</pre>

<h4 id="label-Task-3A+Delete+the+Default+Namespace">Task: Delete the Default Namespace<span><a href="#label-Task-3A+Delete+the+Default+Namespace">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-delete_namespace">Element#delete_namespace</a> to remove the default namespace from the element:</p>

<pre class="ruby"><span class="ruby-identifier">d</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Document</span>.<span class="ruby-identifier">new</span> <span class="ruby-string">&quot;&lt;a xmlns:foo=&#39;bar&#39; xmlns=&#39;twiddle&#39;/&gt;&quot;</span>
<span class="ruby-identifier">d</span>.<span class="ruby-identifier">to_s</span> <span class="ruby-comment"># =&gt; &quot;&lt;a xmlns:foo=&#39;bar&#39; xmlns=&#39;twiddle&#39;/&gt;&quot;</span>
<span class="ruby-identifier">d</span>.<span class="ruby-identifier">root</span>.<span class="ruby-identifier">delete_namespace</span> <span class="ruby-comment"># =&gt; &lt;a xmlns:foo=&#39;bar&#39;/&gt;</span>
<span class="ruby-identifier">d</span>.<span class="ruby-identifier">to_s</span> <span class="ruby-comment"># =&gt; &quot;&lt;a xmlns:foo=&#39;bar&#39;/&gt;&quot;</span>
</pre>

<h4 id="label-Task-3A+Delete+a+Specific+Namespace">Task: Delete a Specific Namespace<span><a href="#label-Task-3A+Delete+a+Specific+Namespace">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-delete_namespace">Element#delete_namespace</a> to remove a specific namespace from the element:</p>

<pre class="ruby"><span class="ruby-identifier">d</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Document</span>.<span class="ruby-identifier">new</span> <span class="ruby-string">&quot;&lt;a xmlns:foo=&#39;bar&#39; xmlns=&#39;twiddle&#39;/&gt;&quot;</span>
<span class="ruby-identifier">d</span>.<span class="ruby-identifier">to_s</span> <span class="ruby-comment"># =&gt; &quot;&lt;a xmlns:foo=&#39;bar&#39; xmlns=&#39;twiddle&#39;/&gt;&quot;</span>
<span class="ruby-identifier">d</span>.<span class="ruby-identifier">root</span>.<span class="ruby-identifier">delete_namespace</span> <span class="ruby-comment"># =&gt; &lt;a xmlns:foo=&#39;bar&#39;/&gt;</span>
<span class="ruby-identifier">d</span>.<span class="ruby-identifier">to_s</span> <span class="ruby-comment"># =&gt; &quot;&lt;a xmlns:foo=&#39;bar&#39;/&gt;&quot;</span>
<span class="ruby-identifier">d</span>.<span class="ruby-identifier">root</span>.<span class="ruby-identifier">delete_namespace</span>(<span class="ruby-string">&#39;foo&#39;</span>)
<span class="ruby-identifier">d</span>.<span class="ruby-identifier">to_s</span> <span class="ruby-comment"># =&gt; &quot;&lt;a/&gt;&quot;</span>
</pre>

<h4 id="label-Task-3A+Get+a+Namespace+URI">Task: Get a Namespace URI<span><a href="#label-Task-3A+Get+a+Namespace+URI">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-namespace">Element#namespace</a> to retrieve a specific namespace URI for the element:</p>

<pre class="ruby"><span class="ruby-identifier">xml_string</span> = <span class="ruby-identifier">&lt;&lt;-EOT</span>
<span class="ruby-value">  &lt;root&gt;
     &lt;a xmlns=&#39;1&#39; xmlns:y=&#39;2&#39;&gt;
       &lt;b/&gt;
       &lt;c xmlns:z=&#39;3&#39;/&gt;
     &lt;/a&gt;
  &lt;/root&gt;
</span><span class="ruby-identifier">EOT</span>
<span class="ruby-identifier">d</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Document</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">xml_string</span>)
<span class="ruby-identifier">b</span> = <span class="ruby-identifier">d</span>.<span class="ruby-identifier">elements</span>[<span class="ruby-string">&#39;//b&#39;</span>]
<span class="ruby-identifier">b</span>.<span class="ruby-identifier">namespace</span>      <span class="ruby-comment"># =&gt; &quot;1&quot;</span>
<span class="ruby-identifier">b</span>.<span class="ruby-identifier">namespace</span>(<span class="ruby-string">&#39;y&#39;</span>) <span class="ruby-comment"># =&gt; &quot;2&quot;</span>
</pre>

<h4 id="label-Task-3A+Retrieve+Namespaces">Task: Retrieve Namespaces<span><a href="#label-Task-3A+Retrieve+Namespaces">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-namespaces">Element#namespaces</a> to retrieve all namespaces for the element:</p>

<pre class="ruby"><span class="ruby-identifier">xml_string</span> = <span class="ruby-string">&#39;&lt;a xmlns=&quot;foo&quot; xmlns:x=&quot;bar&quot; xmlns:y=&quot;twee&quot; z=&quot;glorp&quot;/&gt;&#39;</span>
<span class="ruby-identifier">d</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Document</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">xml_string</span>)
<span class="ruby-identifier">d</span>.<span class="ruby-identifier">root</span>.<span class="ruby-identifier">attributes</span>.<span class="ruby-identifier">namespaces</span> <span class="ruby-comment"># =&gt; {&quot;xmlns&quot;=&gt;&quot;foo&quot;, &quot;x&quot;=&gt;&quot;bar&quot;, &quot;y&quot;=&gt;&quot;twee&quot;}</span>
</pre>

<h4 id="label-Task-3A+Retrieve+Namespace+Prefixes">Task: Retrieve Namespace Prefixes<span><a href="#label-Task-3A+Retrieve+Namespace+Prefixes">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-prefixes">Element#prefixes</a> to retrieve all prefixes (namespace names) for the element:</p>

<pre class="ruby"><span class="ruby-identifier">xml_string</span> = <span class="ruby-identifier">&lt;&lt;-EOT</span>
<span class="ruby-value">  &lt;root&gt;
     &lt;a xmlns:x=&#39;1&#39; xmlns:y=&#39;2&#39;&gt;
       &lt;b/&gt;
       &lt;c xmlns:z=&#39;3&#39;/&gt;
     &lt;/a&gt;
  &lt;/root&gt;
</span><span class="ruby-identifier">EOT</span>
<span class="ruby-identifier">d</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Document</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">xml_string</span>, {<span class="ruby-value">compress_whitespace:</span> <span class="ruby-value">:all</span>})
<span class="ruby-identifier">d</span>.<span class="ruby-identifier">elements</span>[<span class="ruby-string">&#39;//a&#39;</span>].<span class="ruby-identifier">prefixes</span> <span class="ruby-comment"># =&gt; [&quot;x&quot;, &quot;y&quot;]</span>
<span class="ruby-identifier">d</span>.<span class="ruby-identifier">elements</span>[<span class="ruby-string">&#39;//b&#39;</span>].<span class="ruby-identifier">prefixes</span> <span class="ruby-comment"># =&gt; [&quot;x&quot;, &quot;y&quot;]</span>
<span class="ruby-identifier">d</span>.<span class="ruby-identifier">elements</span>[<span class="ruby-string">&#39;//c&#39;</span>].<span class="ruby-identifier">prefixes</span> <span class="ruby-comment"># =&gt; [&quot;x&quot;, &quot;y&quot;, &quot;z&quot;]</span>
</pre>

<h3 id="label-Iteration">Iteration<span><a href="#label-Iteration">&para;</a> <a href="#top">&uarr;</a></span></h3>

<h4 id="label-Task-3A+Iterate+Over+Elements">Task: Iterate Over Elements<span><a href="#label-Task-3A+Iterate+Over+Elements">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-each_element">Element#each_element</a> to iterate over element children:</p>

<pre class="ruby"><span class="ruby-identifier">d</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Document</span>.<span class="ruby-identifier">new</span> <span class="ruby-string">&#39;&lt;a&gt;&lt;b&gt;b&lt;/b&gt;&lt;c&gt;b&lt;/c&gt;&lt;d&gt;d&lt;/d&gt;&lt;e/&gt;&lt;/a&gt;&#39;</span>
<span class="ruby-identifier">d</span>.<span class="ruby-identifier">root</span>.<span class="ruby-identifier">each_element</span> {<span class="ruby-operator">|</span><span class="ruby-identifier">e</span><span class="ruby-operator">|</span> <span class="ruby-identifier">p</span> <span class="ruby-identifier">e</span> }
</pre>

<p>Output:</p>

<pre>&lt;b&gt; ... &lt;/&gt;
&lt;c&gt; ... &lt;/&gt;
&lt;d&gt; ... &lt;/&gt;
&lt;e/&gt;</pre>

<h4 id="label-Task-3A+Iterate+Over+Elements+Having+a+Specified+Attribute">Task: Iterate Over Elements Having a Specified Attribute<span><a href="#label-Task-3A+Iterate+Over+Elements+Having+a+Specified+Attribute">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-each_element_with_attribute">Element#each_element_with_attribute</a> to iterate over element children that have a specified attribute:</p>

<pre class="ruby"><span class="ruby-identifier">d</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Document</span>.<span class="ruby-identifier">new</span> <span class="ruby-string">&#39;&lt;a&gt;&lt;b id=&quot;1&quot;/&gt;&lt;c id=&quot;2&quot;/&gt;&lt;d id=&quot;1&quot;/&gt;&lt;e/&gt;&lt;/a&gt;&#39;</span>
<span class="ruby-identifier">a</span> = <span class="ruby-identifier">d</span>.<span class="ruby-identifier">root</span>
<span class="ruby-identifier">a</span>.<span class="ruby-identifier">each_element_with_attribute</span>(<span class="ruby-string">&#39;id&#39;</span>) {<span class="ruby-operator">|</span><span class="ruby-identifier">e</span><span class="ruby-operator">|</span> <span class="ruby-identifier">p</span> <span class="ruby-identifier">e</span> }
</pre>

<p>Output:</p>

<pre>&lt;b id=&#39;1&#39;/&gt;
&lt;c id=&#39;2&#39;/&gt;
&lt;d id=&#39;1&#39;/&gt;</pre>

<h4 id="label-Task-3A+Iterate+Over+Elements+Having+a+Specified+Attribute+and+Value">Task: Iterate Over Elements Having a Specified Attribute and Value<span><a href="#label-Task-3A+Iterate+Over+Elements+Having+a+Specified+Attribute+and+Value">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-each_element_with_attribute">Element#each_element_with_attribute</a> to iterate over element children that have a specified attribute and value:</p>

<pre class="ruby"><span class="ruby-identifier">d</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Document</span>.<span class="ruby-identifier">new</span> <span class="ruby-string">&#39;&lt;a&gt;&lt;b id=&quot;1&quot;/&gt;&lt;c id=&quot;2&quot;/&gt;&lt;d id=&quot;1&quot;/&gt;&lt;e/&gt;&lt;/a&gt;&#39;</span>
<span class="ruby-identifier">a</span> = <span class="ruby-identifier">d</span>.<span class="ruby-identifier">root</span>
<span class="ruby-identifier">a</span>.<span class="ruby-identifier">each_element_with_attribute</span>(<span class="ruby-string">&#39;id&#39;</span>, <span class="ruby-string">&#39;1&#39;</span>) {<span class="ruby-operator">|</span><span class="ruby-identifier">e</span><span class="ruby-operator">|</span> <span class="ruby-identifier">p</span> <span class="ruby-identifier">e</span> }
</pre>

<p>Output:</p>

<pre>&lt;b id=&#39;1&#39;/&gt;
&lt;d id=&#39;1&#39;/&gt;</pre>

<h4 id="label-Task-3A+Iterate+Over+Elements+Having+Specified+Text">Task: Iterate Over Elements Having Specified Text<span><a href="#label-Task-3A+Iterate+Over+Elements+Having+Specified+Text">&para;</a> <a href="#top">&uarr;</a></span></h4>

<p>Use method <a href="../../../../REXML/Element.html#method-i-each_element_with_text">Element#each_element_with_text</a> to iterate over element children that have specified text:</p>

<h3 id="label-Context">Context<span><a href="#label-Context">&para;</a> <a href="#top">&uarr;</a></span></h3>

<p>whitespace ignore_whitespace_nodes raw</p>

<h3 id="label-Other+Getters">Other Getters<span><a href="#label-Other+Getters">&para;</a> <a href="#top">&uarr;</a></span></h3>

<p>document root root_node node_type xpath inspect</p>

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